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A SpaceX Falcon Heavy rocket, the most powerful launch vehicle in the world, roared into the sky overnight for what CEO Elon Musk called the "most difficult launch" his rocket company has ever attempted.
Lift off occurred at 2:30 am ET Tuesday from a launch pad in Florida. The rocket carried an eclectic batch of 24 experimental satellites into space. Getting the devices to their intended orbits was expected to take hours and require some complicated maneuvering. More